diff --git a/frontend/app/api/auth/google/token/route.ts b/frontend/app/api/auth/google/token/route.ts
index 2b54b697..cf8b66c1 100644
--- a/frontend/app/api/auth/google/token/route.ts
+++ b/frontend/app/api/auth/google/token/route.ts
@@ -4,7 +4,10 @@
  */
 import { NextRequest, NextResponse } from "next/server";
 
-const BACKEND_URL = process.env.BACKEND_URL || "http://localhost:8000";
+// Use backend internal URL if available (Railway), fallback to public URL
+const BACKEND_URL = process.env.BACKEND_URL || 
+  process.env.NEXT_PUBLIC_API_URL || 
+  "http://localhost:8000";
 
 export async function POST(request: NextRequest) {
   try {